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Core i3-1215U vs i7-6900K


Description
The i3-1215U is based on Alder Lake architecture while the i7-6900K is based on Broadwell.

Using the multithread performance as a reference, the i3-1215U gets a score of 185.6 k points while the i7-6900K gets 427.5 k points.

Summarizing, the i7-6900K is 2.3 times faster than the i3-1215U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906a4
406f1
Core
Alder Lake-H
Broadwell-E
Architecture
Base frecuency
0.9 GHz
3.2 GHz
Boost frecuency
4.4 GHz
3.7 GHz
Socket
BGA 1744
LGA 2011-3
Cores/Threads
6/8
8/16
TDP
15 W
140 W
Cache L1 (d+i)
2x32/4x64+2x48/4x32 kB
8x32+8x32 kB
Cache L2
2x1280+2x2048 kB
8x256 kB
Cache L3
10240 kB
20480 kB
Date
April 2022
September 2016
Mean monothread perf.
80.34k points
49.76k points
Mean multithread perf.
185.6k points
427.51k points

AVX2 optimized benchmark
The benchmark in mode III (AVX2), like AVX1, is optimized to used 256 bits registers beside the second version of the Advanced Vector Extensions (AVX). The first AVX2 compatible CPU was released in 2013.
Monothread
i3-1215U
i7-6900K
Test#1 (Integers)
37.56k
23.11k (x0.62)
Test#2 (FP)
21.13k
17.84k (x0.84)
Test#3 (Generic, ZIP)
11.35k
5.34k (x0.47)
Test#1 (Memory)
10.31k
3.47k (x0.34)
TOTAL
80.34k
49.76k (x0.62)

Multithread

i3-1215U

i7-6900K
Test#1 (Integers)
73.97k
184.19k (x2.49)
Test#2 (FP)
72.37k
181.2k (x2.5)
Test#3 (Generic, ZIP)
29.61k
47.44k (x1.6)
Test#1 (Memory)
9.65k
14.69k (x1.52)
TOTAL
185.6k
427.51k (x2.3)

Performance/W
i3-1215U
i7-6900K
Test#1 (Integers)
4931 points/W
1316 points/W
Test#2 (FP)
4825 points/W
1294 points/W
Test#3 (Generic, ZIP)
1974 points/W
339 points/W
Test#1 (Memory)
643 points/W
105 points/W
TOTAL
12374 points/W
3054 points/W

Performance/GHz
i3-1215U
i7-6900K
Test#1 (Integers)
8535 points/GHz
6247 points/GHz
Test#2 (FP)
4802 points/GHz
4822 points/GHz
Test#3 (Generic, ZIP)
2579 points/GHz
1444 points/GHz
Test#1 (Memory)
2343 points/GHz
938 points/GHz
TOTAL
18258 points/GHz
13450 points/GHz

Monothread performance graph
Monothread performance graphics gives the performance vs time. They are useful to measure the time it takes to the CPU to reach the maximum performance.

Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Multithread performance graph
Multithread graphs measure the performance against a heavy load during certain time.

If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Hardlimit Benchmark Central - Ver. 3.11.4